Item Type: MP3 Player Material: Aluminum Alloy Built-in Battery: Lithium Battery 200mAh 1. Lossless Sound Quality: Portable MP3 music player delivers high-fidelity audio and supports MP3, WMA, FLAC, and APE audio formats. 2. Large Memory Capacity: Supports up to 64GB of expandable memory via microSD card (card not included). For optimal performance, use a compatible microSD card. 3. Easy to Use: Navigate playlists and select songs with ease. Supports random play, repeat mode, and sleep timer function. 4. Long Battery Life: Up to 8 hours of continuous playback on a full charge. The built-in battery takes approximately 2 hours to fully charge. 5. Premium Build: Constructed with durable aluminum alloy material, providing a corrosion-resistant and long-lasting design. Device may not be recognized by a computer without a microSD card installed. Package Includes: 1 x MP3 Player 1 x Charging Cable 1 x Earphone